4-speed lub
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 43
Likes: 0
4-speed lub
Need to change the lub in my 80 Vette. The shop manual says to use a 80-90 wt gear lube. Is the 4-speed trans. lube the same as the rear end differential lube? Have a friend that sells Amzoil snythetic 75-90 wt. oil as listed in there tech specs for my car. Will synthetic oil ruin the rubber seals or should I stay with petro products? What product would you use in your car and where is it sold? Thanks for the interest.
Abby Normal
Joined: Dec 2001
Posts: 53,392
Likes: 92
From: Press "2" for English
i used redline gear oil in my old t-10. they offer it in both the weight your manual recommends and their own "MTL" (manual transmission lube). per their recommendations, i used MTL.
and no, they are not the same lube.
and no, they are not the same lube.
Burning Brakes
Joined: Oct 2003
Posts: 1,090
Likes: 74
From: New Carlisle IN
I used valvoline synthetic gear lube (off the shelf at Advance auto) in my tranny. I went to an oil distributer (circle oil in South Bend, IN) and got the rear end lube with the posi additive in it. I forget what brand it was.
